Nut-tap socket.



W. L. GLOUSE.

NUT TAP SOCKET.

APPLICATION FILED MAR. II 1907.

Patented Dec. 21, 1909.

inf; Ill i?! I UNITED STATES PATENT OFFICE.

WILLIAM L. CLOUSE, OF TIFFIN, OHIO,- ASSIGNOB. 'l O THE NATIONALMACHINERY COMPANY, OF TIFFIN, OHIO, A CORPORATION 01'! NEW JERSEY.

NUT-TAP SOCKET.

Specification of Letters Patent.

Patented Dec. 21, 1909.

Application filed latch 11, 1907. Serial 3.. senses.

- pecially adapted for holding taps employed in power nut-tappingmachines.

The object of this invention is to provide a socket so constructed as topermit of the ready removal of the tap secured therein without stoppingthe machine.

A further object of the invention -is to provide a tap socket soconstructed as to permit of the insertion or removal of the tap withlittle pressure.

A still further object of the invention is to provide the improvedsocket with means for preventing breakage of either the tap or itssecuring pin in case the nuts should collect on the shank of the tap andtend to crowd the tap from the socket.

The construction of the improvement will be fully described hereinafterin connection with the accompanying drawing, which forms a part of thisspecification, and its novel features .will be defined in the appendedclaims.

In the drawings Figure 1 is a central longitudinal sectional View of atap socket embodying the invention. Fig. 2 is a similar view on a lineat right angles to the section line of Fig. 1.

The reference numeral 1 designates the body-portion of the socket boredlongitudinally to receive the shank 2 of the tap 3, and transverselyboredand threaded to receive two diametrically opposed screws 4 whichfrictionally engage the opposite flattened faces 5 of the shank at theupper end thereof to removably secure the tap within the socket. Anannular groove 6 is formed in the shank of the tap and in the wall ofthe socket is formed an opening 6 to register with the annular groove inthe shank of the tap. A in 7 having a rounded end is inserted in t e oening 6 and its inner end enters the annu ar groove 6. A guard plate 8,formed of resilient material, is

secured to the socket 1 by means of a screw 8 and is arranged to extenddown over the head of the pin 7. The plate 8 is arranged so that it willnormally stand away from the head of the pin 7 and at a short distanceabove the lower end thereof is formed a shoulder or projection 10 whichis preferably formed by making a bend in the plate itself. A slidablering 9 is arranged around the lower end of the socket and in the innerface of said ring is formed an annular groove or recess 9. The internaldiameter of the ring is such that when the ungrooved portion thereof isin contact with the shoulder 10 on the guard plate 8, the uard platewill be pressed in and caused to bear on the head of the pin 7 and whenthe guard ring is raised and the recess is brought opposite the shoulderthen the late 8 will s ring back from the head of t e pin 7 a su cientdistance to permit the pin 7 to move out so as to withdraw the inner endthereof from the annular oove 6. Stop screws 11 and 12 are provi ed forlimiting the upward and downward movement of the ring 9.

By my invention I am able to provide means for holding the tap firmly inthe socket when the machine is running under proper conditions and atthe same time the tap can be quickly removed by simply raising the ring9 which permits the guard plate 8 to spring back thereby releasing thepin 7 and a pull on the tap will force the end of the pin 7 out of thegroove 6. Now in case the tap should become crowded with nuts throughthe neglect of the operator the unusual pressure caused by theaccumulation of nuts on the tap will automatically withdraw the tap fromthe socket thereby preventing the breaking of the tap. The automatiorelease of the tap is due to the fact that the plate 8 is resilient andalthough when it is held or pressed in by the ring 9 it will exertsufficient pressure to hold the pin 7 in the groove 6 under normalconditions nevertheless when an abnormal pull comes upon the ta the endof the plate 8 will bend back un er the outward pressure of the pin 7permitting the tap to be withdrawn from the socket.

That I claim is 1. The combination with a tap socket of a tap providedwith a groove, a pin extendin through an opening in said socket anadapted to enter the groove in the tap and means for retaining andreleasing said pin comprising a spring plate secured to the socket andbearing on said pin, said spring plate being formed with an outwardlyextending bend and a ring movable on said socket and formed with agroove on its inner surface arranged to receive the bent portion of saidspring when the ring is shifted to release the tension on said spring.

2. The combination with a tap socket of a tap provided with anannular'groove, a in extending through an opening in said soc et andadapted to enter the groove inthe tap and means for retaining andreleasing said pin comprising a spring plate secured to on said socketand formed with an annular 20 groove on its inner surface arranged torecelve the bent portion of said spring when it is desired to releasethe tenslon of said spring, substantially as described.

In testimony whereofyl sign the foregoing 25 specification, in thepresence of two witnesses.

WILLIAM L. GLOI ISE.

Witnesses:

E. R. Fnos'r, WALTER N. CLOUSE.

